EP1508633B1 - Métier à tisser à jet - Google Patents

Métier à tisser à jet Download PDF

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Publication number
EP1508633B1
EP1508633B1 EP03405682A EP03405682A EP1508633B1 EP 1508633 B1 EP1508633 B1 EP 1508633B1 EP 03405682 A EP03405682 A EP 03405682A EP 03405682 A EP03405682 A EP 03405682A EP 1508633 B1 EP1508633 B1 EP 1508633B1
Authority
EP
European Patent Office
Prior art keywords
weft
thread
tube
nozzle
jet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03405682A
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German (de)
English (en)
Other versions
EP1508633A1 (fr
Inventor
Urs Schaich
Marius Bachofen
Erich Gasser
Dietmar Markward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sultex AG filed Critical Sultex AG
Priority to EP03405682A priority Critical patent/EP1508633B1/fr
Priority to US10/880,947 priority patent/US7195039B2/en
Priority to JP2004212388A priority patent/JP2005060919A/ja
Publication of EP1508633A1 publication Critical patent/EP1508633A1/fr
Application granted granted Critical
Publication of EP1508633B1 publication Critical patent/EP1508633B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/308—Stretching or holding the weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/3073—Detection means therefor
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Definitions

  • the invention relates to a jet loom with a arranged on the catch side monitoring device according to the preamble of the independent claim.
  • the weft insertion takes place by means of a fluid, which enters the respective weft thread from the weft side through the opened shed onto the catch side.
  • this fluid serving as the transport medium is air.
  • a defined and predefinable thread length is drawn off from the stationary winding drum of a thread feeding device and fed to a main nozzle on the weft side.
  • the main nozzle is fed with compressed air and accelerates the weft thread into the open shed.
  • auxiliary or relay nozzles are provided, which are also fed with compressed air and lead the weft thread through the shed on the catcher side.
  • the tray change takes place, whereby the weft thread is integrated over the entire weaving width. Subsequently, the thread must be cut on the weft side between the main nozzle and the edge of the product facing it in order to be ready for the next weft insertion. On the catch side of the registered weft thread is also cut.
  • the superfluous thread rest is disposed of by means of a suction or blowing device. The catching end of the inserted weft thread can then be inserted, for example by means of an inserting device after the bin change in the following open shed.
  • two sensors called shotguns are provided on the trapping side, each of which is designed to detect the weft or weft tip.
  • the first shotguard is usually arranged directly at the catch end of the weft insertion path. He detects whether the weft tip in the given time window - based on the weaving cycle - arrives or not. But only with this one sensor can not be checked, for example, whether the registered weft thread is too long (long shot). Therefore, a second weft detector is provided, which is usually arranged so that it does not reach the weft tip at a correct weft insertion. With a correct weft insertion, the weft tip moves to a position somewhere between the two weft guards, so that the second sensor gives no signal.
  • both shotguards are fixedly mounted on the batten, so that both synchronously the oscillating movement with the Execute batten. For this it is necessary to guide the weft thread between the first and the second shot guard.
  • a known solution is to provide on the batten a Hilfsriet thread guide to bridge the distance between the two firefighters. Along this Hilfsriet auxiliary nozzles for stretching or holding the registered weft thread are provided.
  • a jet loom which has a catcher side monitoring device, which does not require an auxiliary reed, without concessions to the quality of control of the weft insertion is necessary. Furthermore, the monitoring device should be able to be used for the handling and removal of incorrectly recorded shots.
  • the task loosening jet loom is characterized by the features of the independent claim.
  • a jet loom in which a weft thread can be introduced from a weft side to a catch side by means of a fluid, with a sley, along which a weft insertion path extends, which defines a weft direction, and with a monitoring device arranged on the catch side, which two Sensor means for detecting the weft thread or parts of the weft thread comprises, wherein exactly one of the sensor means is fixedly mounted on the batten.
  • This permanently mounted on the sley sensor device is hereinafter referred to as shotgun. Since only one of the sensor devices, namely the firing guard, is mounted on the baffle at the end of the weft insertion path on the batten, and the other sensor device is no longer provided on the batten, it requires no Hilfsriets more to guide the weft thread between the two sensor devices , This means a considerable space and weight savings.
  • such a monitoring device has the advantage that the non-mounted on the sley sensor device in further back described manner for the monitoring, handling and, where appropriate, for the removal of defective weft threads can be used, for example in the context of automatic procedures for Schusshoubehebung. In known devices, this usually requires an additional, ie third sensor device. Such can be dispensed with in the inventive monitoring device, which is advantageous from both apparatus and cost aspects.
  • a catching device fixedly arranged on the sley for holding or stretching the weft thread which comprises a catching nozzle and a catching pipe, which are arranged relative to one another such that by loading the catching nozzle with the fluid, the tip of the weft thread into the Catch tube is deflectable.
  • This measure ensures that the correctly entered weft thread is held and stretched until it is hit by the change of subject and fastened. By deflecting the weft tip results in an increase in the frictional force and thus the holding force acting on the weft.
  • the catching pipe opens into the weft direction at an acute angle, preferably at an angle of 30 ° to 70 °.
  • an acute angle preferably at an angle of 30 ° to 70 °.
  • the catching nozzle is designed as a pressure nozzle and is arranged so that the jet emitted from the catching nozzle extends in the same direction as the catching tube. This means that the outlet direction of the catching nozzle is aligned with the entry area of the catching pipe.
  • a further advantageous measure consists in providing a suction device for the weft thread or for parts thereof which are stationary is arranged on the catch side with respect to the machine frame, and which comprises the other of the sensor devices as a pipe monitor.
  • the provision of the second sensor device in or on the suction device has the advantage that this sensor device is passed through in the case of correct weft insertion as well as in the course of weft fault repairs of thread remnants and thus a cleaning effect is achieved.
  • the suction device comprises an inlet funnel and an exhaust pipe adjoining thereto, the inlet funnel facing the catching device, the pipe guard being arranged in the region of the suction pipe.
  • the inlet hopper can then be designed with respect to its lateral extent so that it covers the entire amplitude of the oscillating movement of the output of the weft insertion path or the catching device.
  • the suction device comprises a disposal nozzle which can be acted upon by the fluid and which is arranged directly in front of the tube monitor, viewed in the weft direction.
  • This disposal nozzle which is preferably designed as a pressure or blowing nozzle, has the advantage that a larger tensile force can be exerted on faulty weft threads, which must be removed from the shed.
  • the disposal nozzle when using an electrostatic tube monitor, it is particularly advantageous to arrange the disposal nozzle on or in the suction tube, that the jet emitted by the disposal nozzle of the fluid extends obliquely to the axis of the suction tube.
  • the thread to be disposed of is deflected so that it emits its charge better to the pipe guard.
  • the Pipe guard includes an optical sensor, because the cleaning effect of the thread or thread residue is amplified on the optical sensor.
  • the disposal nozzle and / or the inlet is arranged asymmetrically with respect to the longitudinal axis of the suction tube.
  • the thread or the thread residue receives a twist and moves in a rotating manner along the inner wall of the suction tube.
  • the cleaning effect can be increased and, on the other hand, in the case of an electrostatic tube monitor, the discharge of charge from the thread to the pipe monitor can be further improved.
  • the pipe monitor comprises an electrostatic sensor and the disposal nozzle is arranged such that the jet of fluid emitted by the disposal nozzle increases the static charge of the yarn and deflects the yarn so that it discharges its charge to the electrostatic sensor.
  • the tube monitor comprises an optical sensor
  • the inlet to the suction device is arranged such that during normal operation the thread residues R captured by the catching device constantly clean the optical sensor.
  • Another preferred measure is to provide means to change the distance between the sensor device on the batten (ie the firing monitor) and the pipe monitor. This makes it possible, for example, to change the criteria for monitoring long shots and to adapt them to the respective application.
  • Fig. 1 shows a schematic representation of essential parts of an embodiment of an inventive jet loom, especially an air-jet loom, which is generally designated by the reference numeral 1.
  • the air-jet engine such as drive, warp beam, fabric take-off, electronic control and control devices, etc. are not shown for reasons of clarity.
  • a weft thread S is introduced by means of a fluid, in this case air, from a weft side 2 onto a catching side 3 along a weft insertion path 4.
  • the weft insertion path 4 determines the weft direction, which in Fig. 1 indicated by the arrow A.
  • the jet loom 1 comprises a yarn package 5, from which the weft thread S is drawn off by means of a winding device, not shown, and stored in the form of several windings on a winding drum 6 as a thread supply.
  • a predetermined length of thread is withdrawn from the winding drum 6 until a yarn stopper 61 prevents further peeling.
  • the weft S is accelerated by a main nozzle 7 fed with compressed air. From the main nozzle 7, the weft thread S entered by the warp K formed and opened shed along the weft insertion path 4. Along the weft insertion path 4 more auxiliary or relay nozzles 10 are usually arranged, which support the entry of the weft thread S through the shed and the weft thread S lead. After the weft insertion a batten 9 proposes the weft thread S to the fabric G.
  • Fig. 1 On the weft and / or catcher side 2 and 3 also depositors 12 'and 12 may be provided which bend the ends of the inserted weft thread S after its cutting and after the subject change and insert into the next open compartment, as this in Fig. 1 is shown schematically. In this way, proper fabric edges 13, 13 'can be produced.
  • the inserts 12, 12 'can be designed as air inlets which hold and bend the thread ends by means of air. This point in Fig. 1 the arrows L to the inserts 12, 12 'at.
  • a monitoring device 20 is provided on the catching side 3, which serves for monitoring and handling of the catching-side weft thread tips or ends.
  • the monitoring device 20 can also serve for monitoring and handling of defective weft threads and their removal.
  • the monitoring device 20 comprises two sensor devices 21, 22 for detecting the weft thread S or parts of the weft thread S. According to the invention, only exactly one of these two sensor devices 21, 22 on the catching side 3, namely the sensor device 21 referred to below as a firing monitor, is fixed mounted the sley 9, so that the firing monitor 21 is stationary with respect to the sley 9 and their oscillating movement participates.
  • the second sensor device 22 which is referred to below as a tube monitor 22, is integrated in a manner further explained below in a suction device 30, which is part of the monitoring device 20, and the suction of pieces of thread or thread remnants.
  • the firing monitor 21 is arranged directly at the catching end of the weft insertion path 4 and detects the weft tip as soon as it leaves the shed at the end of the weft insertion path 4.
  • a shotguard 21 is any known per se sensor with which the weft thread is detectable, for example, an electrostatic or optical sensor.
  • the monitoring device 20 further comprises a catching device 40 which, seen in the direction of firing, is arranged fixed behind the firing monitor 21 on the sley 9 and thus moves synchronously with the sley 9.
  • the catching device 40 serves to hold and stretch the registered weft thread and comprises a weft A extending and continuous channel 41, a catch tube 42 and a catching nozzle 43.
  • the catcher 40 is mounted on the sley 9, that the continuous channel 41 with the Weft insertion path 4 is aligned, that is, the channel 41 extends in the extension of the weft insertion path 4.
  • the catching nozzle 43 and the catcher tube 42 are arranged relative to each other so that by loading the catching nozzle 43 with the fluid - here the air - the tip of the inserted weft thread in the catch tube 42 is deflected.
  • the catching tube 42 is arranged so that it opens at an angle ⁇ at an acute angle in the channel 41 and thus in the weft direction A.
  • the angle ⁇ is preferably 30 ° to 70 °.
  • the catching nozzle 43 is preferably a pressure nozzle or blowing nozzle, which is acted upon by compressed air, as the arrow L in Fig. 1 suggests.
  • the catching nozzle 43 opens into the channel 41 and is oriented so that the air jet emitted by the catching nozzle 43 extends substantially in the same direction as the catching pipe 42 and the mouth of the catching pipe 42 strikes the channel 41.
  • the monitoring device 20 further comprises a suction device 30, which is arranged stationary relative to the machine frame of the jet loom 1.
  • the suction device 30 is mounted on the catching side 3 substantially in extension of the weft insertion path 4 outside the sley 9.
  • the suction device 30 comprises an inlet funnel 31 and an adjoining suction tube 32.
  • the inlet funnel 31 is arranged at the same height level as the catching end of the weft insertion path 4 in such a way that it opens in the direction of the catching device 40.
  • it With regard to its lateral extension in the inlet funnel 31, it is preferably designed such that it covers the entire amplitude of the oscillating movement of the catching end of the weft insertion path 4. During operation, therefore, a rectilinear extension of the weft insertion path 4 always moves within the inlet funnel 31.
  • the inlet funnel 31 merges into the suction tube 32, which extends in the weft direction A.
  • the second sensor device 22 Integrated into the suction pipe 32 is the second sensor device 22, namely the pipe monitor 22.
  • the pipe monitor 22 is arranged in the end region of the suction pipe 31 facing away from the inlet funnel 31.
  • tube monitor 22 is any known sensor device which is suitable for detecting the weft thread or parts of the weft thread, in particular electrostatic or optical sensors.
  • a flexible discharge line 33 pass through which sucked threads or thread parts to a disposal container 50.
  • the suction device 30 comprises a disposal nozzle 34, which, viewed in the weft direction, preferably opens into the suction tube 32 directly in front of the tube monitor 22.
  • the disposal nozzle 34 is designed as a blowing nozzle and can be acted upon with air, as the arrow L in Fig. 1 suggests.
  • the disposal nozzle 34 is arranged so that the air jet emitted by it runs obliquely to the axis of the suction tube. As a result, the disposal nozzle 34 blows a thread passing it obliquely toward the pipe monitor 22. In the case of an electrostatic tube monitor 22, this results in a significantly better charge transfer from the thread to the tube monitor 22, whereby the detection is improved.
  • an inlet 35 opens into the suction tube 32.
  • the inlet 35 opens obliquely into the suction tube 32, approximately at the same axial position of the suction tube 32, at which also the disposal nozzle 34 opens.
  • the disposal nozzle 34 and the inlet 35 are arranged substantially symmetrically with respect to the axis of the suction tube 32.
  • a flexible connecting line 36 connects the outlet of the catching pipe 42 of the catching device 40 with the inlet 35 of the suction device 30.
  • the monitoring device 20 operates as follows:
  • a predetermined length of thread from the winding drum of the weft S is accelerated by the main nozzle 7 and entered through the open shed along the weft insertion path 4.
  • the tip of the weft thread 3 passes when leaving the shed on the catching side of the shotgun 21 and is detected by this. Then the tip of the weft thread passes into the channel 41 of the catcher 40. There, the catching nozzle 43 blows the tip of the weft thread S by means of an air jet into the catching pipe 42, where it is held. If the weft thread S has the correct length, its tip is located at any point between the entrance to the catcher 40 and the pipe guard 22 after completion of the picking operation, as in Fig. 1 for the weft S is exemplified.
  • the sley 9 proposes the inserted weft thread S to the fabric edge, the change of subject takes place, whereby the weft thread is integrated over the entire fabric width into the fabric.
  • the registered and now integrated weft thread S is cut on the catching side 3 and on the weft side 2 by means of the cutting device 11 or 11 '.
  • the catching thread residue R is sucked off and passes through the flexible connecting line 36 and the inlet 35 into the suction tube 32, happens - as in Fig. 1 shown - the pipe monitor 22, triggers a signal there and finally passes through the discharge line 33 to the disposal container 50th
  • the correct weft insertion is checked on the basis of the two sensor devices 21, 22.
  • the sensor devices are signal-connected with an evaluation and control unit (not shown).
  • the weft tip For a correct weft insertion, the weft tip must pass the weft detector 21 within a known first time interval, based on the weaving cycle. After cutting, the remaining thread R must pass through the pipe guard during a known second time interval - based on the weaving cycle. Both time intervals correspond to a Winkelinterwall the main shaft of the loom. In this context, it does not matter if we are talking about a time interval or an angular interval.
  • a criterion for a correct weft insertion for example, the following is used: During the first time interval, the weft monitor 21 has detected a thread and outside the second interval the pipe monitor 22 has detected no thread.
  • the monitoring device 20 operates during the correct weft insertion.
  • a significant advantage over known devices is that even with each correct weft insertion of the thread remainder R passes through the tube guard 22. As a result, pollution of the pipe monitor 22 is effectively counteracted because the thread residues R clean the pipe guard constantly.
  • the disposal nozzle 34 is usually inactive.
  • a piece of the weft thread is torn off. This then flies through the channel 41 of the catcher 40 and is sucked from the inlet hopper 41 of the suction device. Depending on where or when the weft thread breaks, the shot guard 21 and / or the pipe guard 22 then registers that the arrival of a thread has been detected outside of the first and / or second interval.
  • stop-shot breaks the weft yarn during braking.
  • the shotgun 21 still registers the correct arrival of the weft tip in the first time interval, but the tube guard registers the arrival of a thread outside the second time interval, too early.
  • the shotguard 21 registers no arrival of a weft thread until the end of the first time interval, then an error in the weft insertion has certainly occurred, for example, the weft thread may have stuck between the warp threads.
  • the monitoring device 20 of the inventive jet loom 1 is also suitable for such automatic procedures for weft defect removal. The following will be Such an automatic procedure is exemplified with reference to FIG Fig. 2 explained.
  • the firing monitor 21 does not detect arrival of a thread tip.
  • the weaving machine is braked. Although there is usually still a stop, but the cutting devices 11, 11 'are disabled so that no cutting, especially shot side, the faulty registered weft thread S occurs.
  • the shed opens. Now, a predetermined thread length is released by the yarn stopper 61 on the winding drum 6, for example one or two windings. This thread length is blown as a loop D or double loop through the shed.
  • the double loop D is in Fig. 2 shown in dashed lines.
  • a traveling field is generated in the shed, so that the loop wanders through the shed and thereby causes a detachment of the damaged defective weft thread.
  • the catching nozzle 43 of the catching device 40 is not activated.
  • the weft thread passes through the inlet funnel 31 in the region of the pipe guard 22 in the in Fig. 2 with E designated position.
  • the pipe monitor 22 detects the arrival of the weft.
  • the disposal nozzle 34 is activated and acts on the weft thread with a compressed air jet.
  • the weft thread is cut on the weft side by means of the cutting device 11 '.
  • the disposal nozzle 34 generates an additional pulling force, which helps to extract the incorrectly inserted weft thread from the tray.
  • the successful completion of the weft fault repair can be recognized by the fact that the pipe monitor 22 no longer detects a thread. Then the faulty weft yarn has been sucked or blown in total in the disposal container 50.
  • the weaving process can continue.
  • Fig. 2 in a solid representation the position of a correctly registered weft S.
  • the disposal nozzle 34 comes next to the function of detachment and the Extracting the erroneously registered weft thread still the function to cause an increase in the static charge of the thread through the air jet emitted by it, so that it is better detectable. Furthermore, the nozzle jet, which runs obliquely to the weft direction A, deflects the yarn to be disposed of in the direction of the periphery of the suction pipe 32, so that the yarn can transfer its load more efficiently to the pipe monitor.
  • the monitoring device 20 of the inventive jet loom 1 has the advantage that the tube monitor 22 is used both in the normal weaving operation as well as procedures for weft defect repair. In comparison to known devices, therefore, no additional sensor for the weft defect repair is needed. Thus, a sensor can be saved. Furthermore, the pipe guard 22 is passed at each weft insertion of a thread residue R. This results in a constant cleaning effect, because the thread residues R remove dirt on the pipe monitor. This increases the reliability of the sensor device and thus the reliability of the monitoring.
  • Fig. 3 shows a variant for the monitoring device 20.
  • the reference numerals have the same meaning, already in connection with Fig. 1 was explained.
  • Fig. 3 variant shown differs in that means are provided to change the distance between the sensor device on the batten, so the shotgun 21, and the pipe monitor 22.
  • These means comprise, for example, a sliding sleeve 37, which is arranged so that the inlet funnel 31 is displaceable relative to the pipe monitor 22 in the weft direction A.
  • the connection line 36 is adaptable with respect to its length.
  • the distance between the firing monitor 21 and the pipe monitor 22 is changeable. By changing this distance, it can be determined, for example, how long a weft yarn may be maximum before it is assessed or detected as a long shot.
  • Fig. 4 shows a longitudinal section through the suction tube 32 in the region of the tube monitor 22.
  • the longitudinal axis of the suction tube 32 is designated C.
  • the inner contour 221 of the tube monitor 22 is here designed so that they is formed flush with respect to the inner wall 321 of the suction tube 32. Of course, other configurations are possible in this regard. Thus, the inner contour 221 with respect to the inner wall 321 also be projected or set back. Except the darsteillungsgemäss in substantially cylindrical shape of the inner contour 321, also concave or convex formations are possible.
  • FIGS. 5 and 6 two particularly preferred variants for the suction device 30 explained. It will be discussed only the differences from the previously described embodiment. Otherwise, the explanations in the Fig. 1-4 illustrated embodiments in an analogous manner.
  • Fig. 5 and Fig. 6 each show a cross section through the suction tube 32, whose longitudinal axis is again denoted by C.
  • the disposal nozzle 34 and the inlet 35 are arranged asymmetrically with respect to the longitudinal axis C of the suction tube. That is, the axis 35A of the inlet 35 and the axis 34A of the disposal nozzle 34 are adjacent to the longitudinal axis C of the suction tube 32 by an amount e1 and e2, respectively.
  • the axes 35A and 34A thus do not intersect the longitudinal axis of the suction tube.
  • the inlet 35 and the mouth of the disposal nozzle 34 are offset by approximately 180 ° with respect to the circumferential direction of the suction tube, in the variant according to FIG Fig. 6 about 90 °.
  • both the inlet 35 and the disposal nozzle 34 are arranged asymmetrically.
  • both the inlet 35 and the disposal nozzle 34 are arranged asymmetrically.
  • the thread or thread residue additionally receives a twist and rotates along the inner wall of the suction tube 32.

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  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (12)

  1. Métier à tisser à jet, dans lequel un fil de trame (S) est insérable au moyen d'un fluide depuis un côté trame (2) vers un côté cueillage (3), avec un battant (9) le long duquel s'étend une voie d'insertion de trame (4) qui détermine une direction de trame (A), et avec un dispositif de surveillance (20) disposé côté cueillage (3), qui comprend deux installations de détection (21, 22) pour détecter le fil de trame (S) respectivement des parties du fil de trame, où exactement une des installations de détection (21) est montée fixement sur le battant (9), caractérisé en ce que le métier à tisser à jet est muni d'une installation de cueillage (40) disposée fixement sur le battant (9) pour tenir respectivement étirer le fil de trame, qui comprend une buse de cueillage (43) et un tube de cueillage (42) qui sont disposés l'un relativement à l'autre de telle sorte que par une sollicitation de la buse de cueillage (43) avec le fluide, la pointe du fil de trame peut être déviée dans le tube de cueillage (42).
  2. Métier à tisser à jet selon la revendication 1, où le tube de cueillage (42) débouche selon un angle aigu (α), de préférence un angle de 30° à 70°, dans la direction de trame (A).
  3. Métier à tisser à jet selon l'une des revendications 1 ou 2, où la buse de cueillage (43) est réalisée comme buse de pression et est disposée de telle sorte que le jet émis par la buse de cueillage (43) s'étend dans la même direction que le tube de cueillage (42).
  4. Métier à tisser à jet selon l'une des revendications précédentes, dans lequel est prévue une installation d'aspiration (30) pour le fil de trame ou pour des parties de celui-ci, qui est disposée d'une manière fixe relativement au châssis de machine au côté cueillage (3), et qui comprend l'autre des installations de détection (22) comme garde-tube.
  5. Machine à tisser à jet selon la revendication 4, où l'installation d'aspiration (30) comprend un entonnoir d'admission (31) et un tube d'aspiration (32) faisant suite, où l'entonnoir d'admission (31) est orienté vers l'installation de cueillage (40), et où le garde-tube (22) est disposé dans la zone du tube d'aspiration (32).
  6. Métier à tisser à jet selon la revendication 4 ou 5, avec une conduite de liaison flexible (36), qui est reliée sur un côté au tube de cueillage (42) et d'autre part à une entrée (35), qui débouche dans l'installation d'aspiration (30), de préférence dans le tube d'aspiration (32).
  7. Métier à tisser à jet selon l'une des revendications 4 à 6, où l'installation d'aspiration (30) comprend une buse d'évacuation (34) pouvant être chargée avec le fluide qui, vue dans la direction de la trame (A), est disposée directement en amont du garde-tube (22).
  8. Métier à tisser à jet selon la revendication 7, où la buse d'évacuation (34) est disposée de telle sorte à ou dans le tube d'aspiration (32) que le jet de fluide émis par la buse d'évacuation (34) s'étend en biais à l'axe du tube d'aspiration (32).
  9. Métier à tisser à jet selon la revendication 7 ou 8, où la buse d'évacuation (34) et/ou l'entrée (35) sont disposées d'une manière asymétrique relativement à l'axe longitudinal (C) du tube d'aspiration.
  10. Métier à tisser à jet selon l'une des revendications 7 à 9, où le garde-tube (22) comprend un capteur électrostatique, et où le tube d'évacuation (34) est disposé de telle sorte que le jet de fluide émis par la buse d'évacuation (34) renforce la charge statique du fil et dévie le fil de telle sorte qu'il transmet sa charge au capteur électrostatique.
  11. Métier à tisser à jet selon l'une des revendications 7 à 10, où le garde-tube (22) comprend un capteur optique, et où l'entrée (35) dans l'installation d'aspiration (30) est disposée de telle sorte que pendant le fonctionnement normal, les restes de fil (R) recueillies par l'installation de cueillage (40) nettoient en permanence le capteur optique.
  12. Métier à tisser à jet selon l'une des revendications précédentes, où des moyens (37) sont prévus pour modifier l'écart entre l'installation de détection (21) sur le battant et le garde-tube (22).
EP03405682A 2003-08-15 2003-09-17 Métier à tisser à jet Expired - Lifetime EP1508633B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03405682A EP1508633B1 (fr) 2003-08-15 2003-09-17 Métier à tisser à jet
US10/880,947 US7195039B2 (en) 2003-08-15 2004-06-29 Jet weaving machine
JP2004212388A JP2005060919A (ja) 2003-08-15 2004-07-21 ジェット織機

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03405598 2003-08-15
EP03405598 2003-08-15
EP03405682A EP1508633B1 (fr) 2003-08-15 2003-09-17 Métier à tisser à jet

Publications (2)

Publication Number Publication Date
EP1508633A1 EP1508633A1 (fr) 2005-02-23
EP1508633B1 true EP1508633B1 (fr) 2008-10-29

Family

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Family Applications (1)

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EP03405682A Expired - Lifetime EP1508633B1 (fr) 2003-08-15 2003-09-17 Métier à tisser à jet

Country Status (3)

Country Link
US (1) US7195039B2 (fr)
EP (1) EP1508633B1 (fr)
JP (1) JP2005060919A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
EP1508633B1 (fr) * 2003-08-15 2008-10-29 Sultex AG Métier à tisser à jet
DE102005022955A1 (de) * 2005-05-19 2006-11-23 Lindauer Dornier Gmbh Verfahren und Vorrichtung zum Halten eines nach einem Startvorgang einer Webmaschine, insbesondere Luftdüsenwebmaschine eingetragenen Schussfadens
US20080271807A1 (en) * 2006-09-07 2008-11-06 Sultex Ag Method and a stretching device for the holding of a weft thread
EP1927691B1 (fr) * 2006-11-29 2010-02-17 ITEMA (Switzerland) Ltd. Dispositif et procédé de maintien de trame pour un métier à tisser à pince
DE502007002850D1 (de) * 2006-11-29 2010-04-01 Itema Switzerland Ltd Fadenfang -Vorrichtung und -Verfahren für eine Greiferwebmaschine
EP2050847B1 (fr) * 2007-10-19 2012-08-29 Siemens Aktiengesellschaft Procédé de transport d'un fil de trame par une foule d'une machine à tisser
CN104264340B (zh) * 2014-10-08 2015-12-02 青岛天一集团红旗纺织机械有限公司 一种喷气织机机械牵伸装置
JP6119715B2 (ja) * 2014-10-27 2017-04-26 株式会社豊田自動織機 エアジェット織機における緯糸張力付与装置
JP6384453B2 (ja) * 2015-11-03 2018-09-05 株式会社豊田自動織機 エアジェット織機における緯糸検出方法
WO2019000228A1 (fr) * 2017-06-27 2019-01-03 盐城市华瑞纺织有限责任公司 Métier à tisser à jet d'air capable de nettoyer automatiquement un tâteur de trame
CN108977997B (zh) * 2018-08-24 2020-01-03 浙江星耀纺织机械有限公司 喷气织机用固定主喷嘴
CN108893842B (zh) * 2018-09-17 2023-06-16 太平洋纺织机械（常熟）有限公司 剑杆织机的气动折入边装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309013A1 (fr) * 1987-08-26 1989-03-29 Picanol N.V. Procédé pour retirer un fil de trame fautif de la foule sur un métier à tisser et métier à tisser utilisant ce procédé
EP0493847A1 (fr) * 1991-01-04 1992-07-08 Picanol N.V. Dispositif pour tendre le fil de trame dans un métier à tisser

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
JP2847971B2 (ja) * 1990-12-28 1999-01-20 株式会社豊田自動織機製作所 ジェットルームにおける緯糸処理装置
DE4443371C1 (de) * 1994-12-06 1996-01-18 Dornier Gmbh Lindauer Schußfadenstreck- und Detektiereinrichtung für Düsenwebmaschinen
DE19545839C1 (de) * 1995-12-08 1996-08-29 Dornier Gmbh Lindauer Verfahren und Webmaschine zur Handhabung eines Schußfadens
DE19802254C1 (de) * 1998-01-22 1999-08-05 Dornier Gmbh Lindauer Schußfadenstreck- und -detektiereinrichtung für Düsenwebmaschinen, insbesondere mit pneumatischem Schußeintrag
DE10115172C1 (de) * 2001-06-08 2002-12-19 Dornier Gmbh Lindauer Verfahren zum Überwachen des Schussfadeneintrags in Luftdüsenwebmaschinen und Vorrichtung zum Durchführen des Verfahrens
EP1508633B1 (fr) * 2003-08-15 2008-10-29 Sultex AG Métier à tisser à jet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309013A1 (fr) * 1987-08-26 1989-03-29 Picanol N.V. Procédé pour retirer un fil de trame fautif de la foule sur un métier à tisser et métier à tisser utilisant ce procédé
EP0493847A1 (fr) * 1991-01-04 1992-07-08 Picanol N.V. Dispositif pour tendre le fil de trame dans un métier à tisser

Also Published As

Publication number Publication date
JP2005060919A (ja) 2005-03-10
US20050034775A1 (en) 2005-02-17
EP1508633A1 (fr) 2005-02-23
US7195039B2 (en) 2007-03-27

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